M9XSW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO94

Receiver-side FT8 activity involving M9XSW, decoded by SO8OO in southeastern Poland. 29 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-07-09.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 29 FT8 messages attributed to M9XSW as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.

Overview

29
Messages attributed
2
UTC dates decoded
10
Active 15-min windows
-17 dB
Estimated median S/N

Bands

20m · 29
First attributed message: 2026-07-07
Last attributed message: 2026-07-09 17:11 UTC

Observed FT8 message patterns

Attributed sample
29 messages
Active dates
2 UTC dates
Estimated median S/N
-17 dB
Estimated 10th-90th percentile
-24 to -12 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 0.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with M9XSW in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to M9XSW

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
IO94 · 22 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,625 km (approx.)
Last such locator decoded
2026-07-09 17:11 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandM9XSW S/NCounterpartCounterpart S/NMsgsCapture
07-11 20:21 20m - / -14 A71UN -24 / - 2 Partial capture
07-09 17:11 20m -11 / - YH7KS - / - 2 Partial capture
07-09 17:09 20m -12 / - W3P - / - 2 Partial capture
07-09 17:07 20m -16 / - PY7XC - / - 3 Partial capture
07-09 16:53 20m -20 / - YH9UA - / - 2 Partial capture
07-09 16:27 20m - / -9 EB3JT -13 / - 3 ✓ Closing fragment
07-09 16:06 20m -16 / - 9A2LM - / - 2 Partial capture
07-09 11:41 20m - / - F5RRS -19 / - 3 Partial capture
07-09 11:17 20m - / -16 F4FSY -12 / - 2 Partial capture
07-09 11:12 20m -21 / - <...> - / -13 2 Partial capture
07-09 11:10 20m - / - PD1ADA -16 / - 7 Partial capture
07-09 11:09 20m - / - IK4LZH +5 / - 3 Partial capture
07-09 10:52 20m - / -3 M5XTC -10 / - 2 ✓ Closing fragment
07-09 10:46 20m - / -13 EA8UP -15 / - 2 Partial capture
07-09 10:26 20m - / 0 M7NFV -13 / - 2 ✓ Closing fragment
07-09 10:13 20m - / -13 PC2J -12 / - 3 ✓ Closing fragment
07-09 10:13 20m - / - PI4IPA -8 / - 2 Partial capture
07-09 10:07 20m - / -10 PD2WL -24 / - 4 ✓ Closing fragment
07-08 18:40 40m - / -9 DL3JHK -18 / - 2 ✓ Closing fragment
07-08 17:58 20m - / -24 HA1BF -8 / - 2 Partial capture
07-07 20:09 40m - / - DF3IS -12 / - 2 Partial capture
07-07 18:17 40m - / - DL1BBO -6 / - 3 Partial capture
07-07 13:53 20m - / -13 LY100RADIO -14 / - 3 Partial capture
07-07 13:32 20m - / -16 EC3A -24 / - 3 ✓ Closing fragment
07-07 12:25 20m - / -18 9A4ZM -15 / - 3 ✓ Closing fragment
07-07 11:44 20m - / - F5RRS -5 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

20m 
UTC    dB Audio  Message
165415 -24 1764  YH9UA M9XSW IO94
165800 -22 1520  YH7KS M9XSW IO94
165930 -19 1520  CQ M9XSW IO94 (x2)
170145 -16 1520  M9XSW LZ2VQ KN23
170230 -15 1520  UA1WA M9XSW -04
170730 -15 1635  PY7XC M9XSW IO94 (x3)
170900 -14 1483  W3P M9XSW IO94 (x2)
171100 -12 1521  YH7KS M9XSW IO94 (x2)
202130 -24 1657  M9XSW A71UN -14 (x2)
40m 
UTC    dB Audio  Message
181745  -6 2883  M9XSW DL1BBO JO43 (x3)
184200 -24 2148  M9XSW PD0MNO -06
200900 -11 1577  M9XSW DF3IS JN49 (x3)
201600 -17 1532  M9XSW PD0LBY JO22
184045 -19 1353  M9XSW DL3JHK R-09 (x2)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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